下列心脏疾病不出现震颤的是（）
A.主动脉瓣关闭不全
B.主动脉瓣狭窄
C.室间隔缺损
D.动脉导管未闭
E.二尖瓣狭窄
参考答案：A
根据句意及图片完成单词。
1. My favourite lesson is _____ ( ).
2. I love _____ ( ). It's my favourite lesson.
3. Today, we have _____ ( )at half past eleven.
4. In the afternoon, we have _____ ( ) at two o'clock.
5. I'm Bill. I have _____ ()at half past six in the evening.
什么是油的色谱分析法，怎样分析充油电气设备的故障形式？
). 
). It's my favourite lesson. 
)at half past eleven. 
) at two o'clock. 
)at half past six in the evening.